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Physics: Recent submissions

  • UPON THE HORIZON'S VERGE: THERMAL PARTICLE CREATION BETWEEN AND APPROACHING HORIZONS 
    Fernández-Silvestre, Diego; Good, Michael R R; Linder, Eric V (Classical and Quantum Gravity, 2022)
    Quantum particle creation from spacetime horizons, or accelerating boundaries in the dynamical Casimir effect, can have an equilibrium, or thermal, distribution. Using an accelerating boundary in flat spacetime (moving ...
  • MÖBIUS MIRRORS 
    Good, Michael R R; Linder, Eric V (Classical and Quantum Gravity, 2022)
    An accelerating boundary (mirror) acts as a horizon and black hole analog, radiating energy with some particle spectrum. We demonstrate that a Möbius transformation on the null coordinate advanced time mirror trajectory ...
  • DETERMINATION OF THE CHARGE CARRIER DENSITY IN ORGANIC SOLAR CELLS: A TUTORIAL 
    Vollbrecht, Joachim; Tokmoldin, Nurlan; Sun, Bowen; Brus, Viktor V.; Shoaee, Safa; Neher, Dieter (Journal of Applied Physics, 2022)
    The increase in the performance of organic solar cells observed over the past few years has reinvigorated the search for a deeper understanding of the loss and extraction processes in this class of device. A detailed ...
  • STUDY OF THE ELECTRON–ATOM COLLISIONS IN DENSE SEMICLASSICAL PLASMA OF NOBLE GASES 
    Dzhumagulova, Karlygash N.; Shalenov, Erik O.; Tashkenbayev, Yerkhan A.; Ramazanov, Tlekkabyl S. (Journal of Plasma Physics, 2022)
    We present the effective optical potential of the interaction of an electron with an atom in dense semiclassical plasma of noble gases. This potential takes into account the collective screening effect and the quantum ...
  • MaLeFiSenta: Machine Learning for FilamentS Identification and Orientation in the ISM 
    Alina, Dana; Shomanov, Adai; Baimukhametova, Sarah (IEEE Access, 2022-07-22)
    Filament identification became a pivotal step in tackling fundamental problems in various fields of Astronomy. Nevertheless, existing filament identification algorithms are critically user-dependent and require individual ...
  • EFFECTS OF GRAVITATIONAL LENSING ON NEUTRINO OSCILLATION IN Γ-SPACETIME 
    Chakrabarty, Hrishikesh; Borah, Debasish; Abdujabbarov, Ahmadjon; Malafarina, Daniele; Ahmedov, Bobomurat (The European Physical Journal C, 2022)
    We study the effects of gravitational lensing on neutrino oscillations in the γ-spacetime which describes a static, axially-symmetric and asymptotically flat solution of the Einstein’s field equations in vacuum. Using the ...
  • CGHS BLACK HOLE ANALOG MOVING MIRROR AND ITS RELATIVISTIC QUANTUM INFORMATION AS RADIATION REACTION 
    Myrzakul, Aizhan; Xiong, Chi; Good, Michael R R (Entropy, 2021)
    The Callan-Giddings-Harvey-Strominger black hole has a spectrum and temperature that correspond to an accelerated reflecting boundary condition in flat spacetime. The beta coefficients are identical to a moving mirror ...
  • OPTICAL RADIATION FROM THE SPUTTERED SPECIES UNDER EXCITATION OF TERNARY MIXTURES OF NOBLE GASES BY THE 6LI(N,Α)3H NUCLEAR REACTION PRODUCTS 
    Samarkhanov, K.; Khasenov, M.; Batyrbekov, E.; Gordienko, Yu.; Baklanova, Yu.; Kenzhina, I.; Tulubayev, Ye.; Karambayeva, I. (EURASIAN CHEMICO-TECHNOLOGICAL JOURNAL, 2021-08-30)
    The present paper examines the luminescence of ternary Ar-Kr-Xe and Ne-Ar-Kr mixtures of noble gases in the spectral range from 300 to 970 nm, excited by the 6Li(n,α)3H nuclear reaction products in the core of a nuclear ...
  • LARGE-SCALE MAGNETIC FIELD IN THE MONOCEROS OB-1 EAST MOLECULAR CLOUD 
    Alina, D.; Montillaud, J.; Hu, Y.; Lazarian, A.; Ristorcelli, I.; Abdikamalov, E.; Sagynbayeva, S.; Juvela, M.; Liu, T.; Carrière, J.-S. (Astronomy & Astrophysics manuscript, 2021)
    Context. The role of large-scale magnetic fields in the evolution of star forming regions remains elusive. Its understanding requires observational characterisation of well-constrained molecular clouds. The Monoceros OB1 ...
  • ACCRETION DISK LUMINOSITY FOR BLACK HOLES SURROUNDED BY DARK MATTER WITH ANISOTROPIC PRESSURE 
    Boshkayev, Kuantay; Giamb`o, Roberto; Konysbayev, Talgar; Kurmanov, Ergali; Luongo, Orlando; Malafarina, Daniele; Quevedo, Hernando (The Astrophysical Journal, 2021)
    We investigate the luminosity of the accretion disk for a static black hole surrounded by dark matter with anisotropic pressure. We calculate all basic orbital parameters of test particles in the accretion disk, such as ...
  • SURFACE-ENHANCED RAMAN SCATTERING FROM DYE MOLECULES IN SILICON NANOWIRE STRUCTURES DECORATED BY GOLD NANOPARTICLES 
    Ikramova, Saltanat B.; Utegulov, Zhandos N.; Dikhanbayev, Kadyrjan K.; Gaipov, Abduzhappar E.; Nemkayeva, Renata R.; Yakunin, Valery G.; Savinov, Vladimir P.; Timoshenko, Victor Yu (International Journal of Molecular Sciences, 2022-02-26)
    Silicon nanowires (SiNWs) prepared by metal-assisted chemical etching of crystalline silicon wafers followed by deposition of plasmonic gold (Au) nanoparticles (NPs) were explored as templates for surface-enhanced Raman ...
  • QUANTUM POWER: A LORENTZ INVARIANT APPROACH TO HAWKING RADIATION 
    Good, Michael R.R.; Linder, Eric V. (arxiv, 2021)
    The Equivalence Principle teaches us that gravitation, acceleration, and curvature are equivalent. Moreover we know that external effects on quantum fields creates par ticles, and this ties together black hole particle ...
  • NANOTUBES AS SINKS FOR QUANTUM PARTICLES 
    Valagiannopoulos, Constantinos (arxiv, 2021)
    Nanotubes with proper thickness, size and texture make ultra-efficient sinks for the quantum particles traveling into spe cific background media. Several optimal semiconducting cylindrical layers are re ported to achieve ...
  • DEPTH-RESOLVED THERMAL CONDUCTIVITY AND DAMAGE IN SWIFT HEAVY ION IRRADIATED METAL OXIDES 
    Abdullaev, Azat; Koshkinbayeva, Ainur; Chauhan, Vinay; Nurekeyev, Zhangatay; O’Connell, Jacques; van Vuuren, Arno Janse; Skuratov, Vladimir; Khafizov, Marat; Utegulov, Zhandos N. (Journal of Nuclear Materials, 2022)
    We investigated thermal transport in swift heavy ion (SHI) irradiated insulating single crystalline oxide materials: yttrium aluminum garnet- Y3Al5O12 (YAG), sapphire (Al2O3), zinc oxide (ZnO) and magnesium oxide (MgO) ...
  • DESIGNING NANOINCLUSIONS FOR QUANTUM SENSING BASED ON ELECTROMAGNETIC SCATTERING FORMALISM 
    Valagiannopoulos, Constantinos (Progress In Electromagnetics Research, 2021)
    Quantum interactions between a single particle and nanoinclusions of spherical or cylindrical shape are optimized to produce scattering lineshapes of high selectivity with respect to impinging energies, excitation ...
  • THE IMPACT OF PROGENITOR ASYMMETRIES ON THE NEUTRINO-DRIVEN CONVECTION IN CORE-COLLAPSE SUPERNOVAE 
    Kazeroni, R´emi; Abdikamalov, Ernazar (arxiv, 2020)
    The explosion of massive stars in core-collapse supernovae may be aided by the con vective instabilities that develop in their innermost nuclear burning shells. The re sulting fluctuations support the explosion by generating ...
  • OBTAINING OF UFG STRUCTURE OF ZR-1% NB ALLOY BY RADIAL-SHEAR ROLLING 
    ARBUZ, Alexandr; KAWALEK, Anna; OZHMEGOV, Kirill; DANIYEVA, Nurgul; PANIN, Evgeniy (Metal 2020, 2020)
    An overview of the prospects for the development of nuclear technologies and the conclusion of the relevant requirements for advanced structural materials, their classification and features were described. In order to ...
  • EFFECTIVE TECHNOLOGIES OF SEVERE PLASTIC DEFORMATION 
    NAIZABEKOV, Abdrakhman; LEZHNEV, Sergey; PANIN, Yevgeniy; ARBUZ, Alexandr; VOLOKITINA, Irina; VOLOKITIN, Andrey (Metal 2020, 2020)
    Creation of new structural materials with new unique properties of metal remains one of the urgent tasks of modern materials science. In practice, it is possible to improve the properties of existing structural materials ...
  • SOLUTION-PROCESSED ANTIREFLECTIVE COATING FOR BACK-CONTACT PEROVSKITE SOLAR CELLS 
    Bacal, Dorota M.; Lal, Niraj N.; Jumabekov, Askhat N.; Hou, Qicheng; Hu, Yinghong; Lu, Jianfeng; Chesman, Anthony S. R.; Bach, Udo (Optics Express, 2020)
    Back-contact architectures for perovskite solar cells eliminate parasitic-absorption losses caused by the electrode and charge collection layers but increase surface reflection due to the high refractive index mismatch ...
  • FINITE THERMAL PARTICLE CREATION OF CASIMIR LIGHT 
    Good, Michael R. R.; Linder, Eric V.; Wilczek, Frank (Modern Physics Letters A, 2019)
    A new solution for an analytic spectrum of particle creation by an accelerating mir ror (dynamical Casimir effect) is given. It is the first model to simultaneously radiate thermally and emit a finite number of particles.